Spring-balance for metal roughing and finishing mills.



No. 770,950 I PATENTED SEPT. 27, 1904. W. H. BAILEY.

SPRING BALANCE FOR METAL ROUGHING AND FINISHING MILLS.

' APPLIUATION FILED SEPT. 27, 1902.

no MODEL. 2 SHEETS-SHEET 1.

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3 AZOQJLMM $43M, 4.9mm. I

No. 770,950. PATENTED SEPT. 27, 1904. W. H. BAILEY.

SPRING BALANCE FOR METAL ROUGHING AND FINISHING MILLS.

APPLICATION FILED SEPT. 27, 1902. NO MODEL. 2 EHEETS-SHEBT 2.

Altamey Patented September 27, 1904.

PATENT OFFICE.

WILLIAM H. BAILEY, OF CANAL DOVER, OHIO.

SPRING-BALANCE FOR METAL ROUGHING AND FINISHING MILLS.

SPECIFICATION forming part of Letters Patent No. 770,950, datedSeptember 27, 1904,

Application filed September 27, 1902. Serial No. 125,086. (N d l) To allwhom it may concern:

Be it known that 1, WILLIAM H. BAILEY, a citizen of the United States,residing at Canal Dover, in the county of Tuscarawas and State of Ohio,have invented certain new and useful Improvements in Spring-Balances forMetal Roughing and Finishing Mills; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form a part ofthis specification.

My invention relates to a spring-balance for metal roughing andfinishing mills or means for automatically balancing and raising, alsothe steady and even lowering of the top roll of a mill when the screwsare run up or down the desired distance, so as to leave the necessaryspace between the rolls as required, according to the thickness of thebars of metal to be inserted between said rolls, and although moreespecially intended or designed for service on metal roughing mills isalso susceptible for use on various other mills or devices of adifferent character, but wherein the principles are similar.

The principal objects and advantages of this invention consist inproducing a device that will take the place of and be an improvementover the old method of raising the upper or top roll of a metal millwhen the screws are run up, as heretofore. It then being customary toemploy the old style of lever-balance wherein a long lever and weightsare used, said lever being placed in the pit under the rolls. Thismethod is very objectionable, for the reason that there is considerabletrouble caused by the weights falling off and being down in the pit aredifficult to handle. Besides they need constant attention; but myspring-balance needs no attention, as it works automatically, isefiective in its results, simple in construction, can be readily andeasily handled and repaired, and is inexpensive in cost of manufacture.

My invention, referring in general terms to its construction, consistsof the bridge and wherever they occur throughout the several views,Figure 1 is a view in end elevation of a pair of rolls and the housingfor same and having my spring-balance in operative position, so as toshow the practical application of my invention. Fig. 2 is aside viewofmy spring-balance with the parts together ready to be placed inposition between a pair-0f rolls. Fig. 3 is a perspective view in detailof the carrier. Fig. i is a perspective view in detail of the bridge.Fig. 5 is a perspective view in detail, partially broken away and insection, of one end of the bridge, so as to show the construction whenthe supports are formed integral and a part of the bridge, which may bedone when desired; and Fig. 6 is a view in front elevation of a pair orset of rolls and the housings for same, partially broken away and insection through the window of the housing at one end and taken on theline y 3 of Fig. 1, showing my springbalance in operative position, soas to more fully illustrate the practical application of'my invention.

In describing my said invention and referring in detail to the differentparts or mechanical elements of construction as shown throughout thevarious views of the drawings, and indicated by means of the letters ofreference, as aforesaid, A refers to the carrier, preferably constructedout of cast-steel and provided with a bearing a, of brass or Babbitmetal, which bears up against and upon which rests the neck of the upperor top roll when said carrier is in position, said carrier being furtherprovided with lugs or projections Z), adapted to rest and move insuitably-formed recesses or grooves located in the inner face of thehousings at each side of the windows, thus permitting of the carriermoving up and down as it forces said upper roll upward or permits ofsaid upper roll moving steadily and evenly downward, according to thedirection in which the screws B are run, by reason of the action of thesprings or reacting members C, which are retained in place in an uprightposition by the small bearings (Z and e, projecting from carrier A andbridge vF, respectively. Bridge F is preferably constructed out ofcast-steel (the same as carrier A) and acts as a support for thecarrier, as is clearly shown in the drawings, particularly in Fig. 1,said bridge being in turn supported in a stationary position by lugs f,which may be placed or formed on the inside of the face of the housings,as shown in Fig. l, or said lugs may be separate from the housings andformed integral with the bridge and provided with openings or eyes 9,adapted to receive screws, as shown in Fig. 5, the under side or face ofsaid bridge being slightly concaved, as at h, thus leaving a space, asat 2', between itand the neck of the lower roll, which permits of oil,grease, or other lubricant being applied to the neck of said roll whenfound necessary, said bridge being further provided with lugs Z, adaptedto rest in the recess or groove in the housings.

If desired, both the carrier and bridge may be suitably provided with asuflicient number of perforations to allow of water passing through ontothe neck of the rolls, thus cooling them.

It can be clearly understood and will be obvious from the foregoingdescription that my spring-balance is of course intended and designed tobe inserted in the window of each housing at both ends of the pair ofrolls. It will act automatically and by reason of the springs orreacting members will permit of the upper roll working steady, even, anduniform, will do away with all labor in raising the upper roll, andbeing above ground and in plain view the condition of the device can beseen at all times, and, furthermore, my spring-balance can bemanufactured and any worn parts readily replaced at a very small cost.

I wish it to be here understood that I reserve the right under thewell-established principles of patent law to make any minor changes andalterations in the arrangement and construction of the several parts ofmy device as may from time to time suggest themselves so long as withinthe scope and not departing from the spirit and principles of theinvention.

Having now described my spring-balance for metal roughing and finishingmills, I will proceed to point out what is new and my invention.Therefore I/Vhat I claim is 1. In a rolling-mill, and in combinationwith the upper and lower rolls, of a carrier for the upper roll having acentral bearing for said roll, end lugs fitted to slide in the frame ofthe mill, and projections upon the under face of said carrier near thelugs, and a bridge having lugs fitted to slide in the frame of the mill,projections on the upper face of the bridge in line with the lugs on thecarrier, and a central bearing for the lower roll, and springsintermediate the carrier and bridge said springs being seated upon theprojections of the carrier and bridge.

2. In a rolling-mill, the combination of the upper and lower rolls, acarrier for the upper roll having a central bearing fitted therein, endlugs mounted to slide in the frame of the mill, projections upon thelower face of the carrier near the lugs, a bridge having a centralbearing for the lower roll, lugs to slide in the frame, projections uponits upper face in line with the projections on the carrier, springsinterposed between the carrier and bridge and seated upon theprojections of the carrier and bridge, lugs at the ends of the bridge,and a screw for adjusting the rolls.

In testimony whereof I have affixed my signature in presence of twowitnesses.

WILLIAM H. BAILEY.

Witnesses:

HARRY H. HOSTETLER, IVIORRIS BAKER.

